Home / 98,811.18-148,171.92-42,624.72

Finding the Fourth Proportional to 98,811.18, 148,171.92 and 42,624.72

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Solution

The fourth proportional to 98,811.18, 148,171.92 and 42,624.72 is: 63,917.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,811.18 : 148,171.92 = 42,624.72 : x
  2. Step 2: Convert to fraction form
    98,811.18/148,171.92 = 42,624.72/x
  3. Step 3: Cross multiply
    98,811.18x = 148,171.92 × 42,624.72
  4. Step 4: Simplify right side
    98,811.18x = 6,315,786,601.86
  5. Step 5: Solve for x
    x = 6,315,786,601.86/98,811.18
  6. Step 6: Final answer
    x = 63,917.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.